Two changes after user feedback that externals sit near-but-wrong (shield inset
into the hull, thruster floating close):
- Scale: the joint table's slots 5–7 are per-axis scale (a GN_ShieldG frame ships
at 0.5, GN_Jet FX at 2.4–6.5) and were being ignored, rendering scaled parts at
the wrong size. ScenePart now carries `s` and applies R·(S·v)+T.
- External placement is fundamentally approximate: a GN_* frame is the mount
PIVOT (f105's two GN_ShieldG frames are both on the centreline), while the
part's outboard/rotational offset lives in a detail sub-rig / runtime code this
static pass can't recover. So assemble_ship gains `include_external`: the hull
tier (rou_ nodes) is exact and always drawn; the external tier (bridge / shield
/ engine at GN_ frames) is opt-in via a "Show external parts" checkbox in the
Ships browser, off by default so the clean, correct hull is the default view.
The module doc is corrected to the scene-graph mechanism (the old "draw parts
untransformed" claim was wrong).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The sub-composites (`e_rou_<id>_eng`, `_wep_*`) are LOCAL detail rigs: their
nodes are posed in their own frame, not ship-space, so folding them in placed
the engines at ~mid-ship (Z≈99) instead of aft — the "floating in air" parts.
The PRIMARY composite (`e_rou_<id>`, the one with the most nodes) already carries
the full ship-space layout: every hull body AND every `GN_*` hardpoint frame
(GN_Bridge at the stern, GN_Engine aft, GN_ShieldG amidships…). Assemble from
that one composite only; engines/bridge/shield now resolve to their real aft/mid
frames. Robust to the odd single-composite case (e108's `e_rou_e108_Missile_open`
is still picked as its own primary).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The first cut drew every part at the origin, overlapping into a mess — the parts'
vertex buffers are authored around the origin, NOT pre-placed. The real world
placement lives in the composite scene-graph resource `e_rou_<id>`, exactly like
node_transforms poses the DeltaSaber's fins within one resource — but here the
nodes reference SEPARATE geometry resources.
Two tiers, matching how the game splits a ship (as the user described):
- Hull — `rou_<id>_*` scene nodes name the hull body resources and carry their
world transform (bodies that together form the hull, not individually
destructible). Composed parent∘child down the first-child/next-sibling tree.
- External hardpoints — `GN_*` frame nodes are the Vessel mounts (`GN_Bridge_01`,
`GN_ShieldG_01`, `GN_Engine_01`, matching the IDXD recipe Frame names). Each
bridge / shield-generator / engine part is placed at its frame by category+idx —
the individually-destructible parts.
- mesh: `scene_world_nodes` — walk a composite, emit every `rou_`/`GN_` node with
its composed world transform (same record layout + TRS convention as
node_transforms, cross-resource). ScenePart{resource,m,t}+apply.
- ship: `assemble_ship(bytes, id)` — resolve hull nodes to the ship's own parts
(shared cross-id turrets excluded — they need the per-mount recipe), match
external parts to GN frames, fall back to a raw draw when a prop has no
composite. is_base_part now also drops `_dNN`/`_lNN`/`_mNN` LOD copies.
- viewer: build_ship_model runs assemble_ship, decodes only referenced resources,
bakes each part's world pose into its vertices (one posed copy per placement),
then assembles via the shared prepare path. RequestShipRender carries the id.
Verified headless: parts now spread into coherent single-ship extents
(e108 185×174×683, f106 703×479×2079, f101 carrier 560×539×1712) instead of
piling at the origin. Turret placement (shared eNNN gun models on many GN_*Gun*
frames) still pending the per-mount recipe.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Adds a Ships window that scans the stage containers, reconstructs each capital
ship from its XBG7 part family (via sylpheed_formats::ship), and renders the
whole assembled model in the 3D view on click.
- iso_loader: ShipBrowser resource + ShipRow (id, faction, name, parts, stage,
and linked Vessel stats: HP/size/turrets/bridges/shield gens), RequestShipCatalog
+ RequestShipRender events, ShipCatalogLoaded message. build_ship_catalog scans
Stage_S01..S30, groups resources into ships, joins Vessel recipes by id, and
sorts capital ships (Vessel-matched) first. handle_ship_render_request decodes
only the ship's parts (models_named) and assembles them off-thread, reusing the
existing XprPrepared → apply_prepared_xpr render + camera-focus path.
- prepare_models gains an `assemble` mode (prepare_ship): parts share ONE recentre
so each keeps its ship-local offset (bridge fore, engines aft) instead of the
per-model recentre / thumbnail grid used for a stage browse.
- ui: draw_ships_ui (own system, keeps draw_viewer_ui under the 16-param limit) —
faction filter chips, name/id search, collapsible per-ship stat cards with an
"Assemble & view in 3D" button; colour-coded by faction. View ▸ Ships menu item.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Project Sylpheed never stores a capital ship as a single mesh. Each ship is
modelled, then split into destructible parts (hull segments, bridge, engines,
integral turrets), each shipped as its own XBG7 resource inside a
hidden/resource3d/Stage_SNN.xpr container. The split lets the game hide/replace
a part when the player destroys it. Crucially each part keeps its ship-local
position, so reconstructing the whole ship is: draw every base part of one id
together, untransformed.
New `ship` module: Faction (from the e/f/n id prefix — ADAN/TCAF/Neutral),
ShipModel, ship_id_of, is_base_part (skips _l/_m/_d LODs, _bNN/_dead/_break
destruction geometry, e_rou_ scene nodes), and ships_in_container to group a
stage's resources into whole ships.
Supporting:
- mesh::xbg7_resource_names — list a container's XBG7 resource names (directory
walk only, no geometry decode).
- Xbg7Model::models_named — decode only the named resources (assemble a ship
from its ~8 parts instead of the whole ~300-resource stage).
- game_data::Vessel gains `model` (the rou_<id> hull stem) to link stats to the
3D part family.
Tests: id/part classification + a disc-gated reconstruction of the ADAN e108
frigate from Stage_S02.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Wire the decoded game_data + localization tables into the viewer as a
browsable window. View ▸ Game Data opens a floating panel with category
tabs — Weapons, Craft, Capital Ships, Characters, Missions, Arsenal,
Flights — decoded off-thread from GP_MAIN_GAME_E + GP_HANGAR_ARSENAL.
- Weapons/Craft/Ships: sortable stat grids (power/velocity/range;
HP/cruise/accel/radar/turrets; HP/length/turrets/bridges/shield-gen),
with a live name filter.
- Characters: name (localized) + faction (colour-coded) + portrait count.
- Missions: collapsible per stage — location, resolved objectives, fail
conditions, and the enemy roster with HP.
- Arsenal: the player's nose/arm weapon options in four columns.
- Flights: distinct wingman line-ups.
Its own egui system (keeps draw_viewer_ui under Bevy's 16-param limit);
a RequestGameData event from the menu opens it and lazily decodes.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Decode the player weapon arsenal from the UNITS tables
(GP_HANGAR_ARSENAL.pak): the selectable weapons per Delta Saber
hardpoint. Each `STANDARD_<hp>` header (Nose / Arm1-3) lists its options
up to the next header — extracted by shape, unioned + deduped across
configs.
The arsenal reads with the game's own names: NOSE guns (Stiletto,
Rapier, Broad Sword, Machine Cannon), ARM missiles/bombs (Falcon, Eagle,
White Shark, Piranha, Tomahawk Rail Gun, Maelstrom Bomb). Example
`arsenal` prints them. +1 test.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The player's Delta Saber missile / special weapons (Weapon_DSaber_P_wep_*)
live in variant schemas (439b1f29, 28295901), not the main WEAPON schema,
so the schema-only filter missed 10 of them. Match all `Weapon`-shaped
records by table name instead (excluding the EnumWeapon name lists),
deduped by id: 121 → 131 weapons.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Decode the UNITS/ZUNITS player-unit tables (GP_HANGAR_ARSENAL.pak) into
flight assignments: which pilot flies each callsign (Rhino1→Katana,
Bird1→Sandra, …), plus the player craft. Assignments are `Callsign<N>-
Pilot` tokens, extracted by shape.
138 configs; the distinct line-ups trace the campaign's story — Raymond
leads Rhino flight early (Rhino1=Raymond, Rhino2=Katana), then Katana
takes the lead (Rhino1=Katana, Rhino2=Ellen, Rhino3=Gene, Rhino4=Yoji).
Example `flights` prints the line-ups. +1 test.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Decode the EnumUnit tables (schema 35b8dc67) into mission rosters: the
distinct combatant `UN_*` ids for one battle, stage props (asteroids,
collision meshes) dropped. The tables aren't tagged with their stage on
disc, so `stage` is inferred from any `UN_S<NN>_…` prop id in the roster
and left None otherwise (honest — ~8 of 31 rosters self-identify).
Joined against load_units / load_vessels this gives each battle's
combatants with stats, e.g. S01 = ADAN Turret (100 HP), Attacker
(500 HP), Destroyer (10000 HP). Example `battle` prints them.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Decode the message tables (schema b412e6d8) into dialogue lines: each
`Message_NNN` sub-record → a DemoMessage with the speaker, portrait
(face), voice-clip token, and caption page text-keys. Fields are found
by prefix (Character*/Face*/VOICE_*/id-prefixed pages), so the
positional / first-record-defines-schema layout doesn't matter.
10,263 lines parse; ~815 name an explicit speaker (the rest are system /
continuation lines — left unattributed rather than guessed). Paired with
localization::TextIndex the attributed ones read straight out — e.g.
KATANA [VOICE_RHIN_000] "Ellen, get back into formation!". The
voice-clip token ties each line to its audio bank, closing the loop with
the cutscene-voice work. +1 test; example `dialogue` prints
speaker + clip + resolved text.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Decode the per-stage Enumerate_Squadrons tables (UnitGroup_S<NN>.tbl)
into flight groups: formation shape, AI behaviour, side, and the member
craft. Definitions are delimited by the FormationID key; members are the
first `count` UN_ craft after the header (anything past them belongs to
the next squadron or the stage roster — the naive "all UN_ in span"
over-collected). e.g. the player's Rhino flight = a 2-craft TCAF
squadron of Delta Sabers flying Formation_2_Rhino. Schema hash varies
per stage so we match on the table name. Squadron id is positional and
left None when the id list and definitions don't line up (honest, not
guessed). +1 test.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Project Sylpheed stores its UI/story text in IXUD entries as UTF-16LE,
interleaved `text, key` (a prose string immediately followed by the
identifier that names it). TextIndex::build(pak) scans a language pak's
IXUD entries and indexes every pair — 8457 English keys from
GP_MAIN_GAME_E: objectives, hints, lose conditions, character names,
and cutscene dialogue.
This makes the whole game read in English: the 16-mission campaign
(Repel the surprise attack → Shoot down Margras → the Prometheus Driver
finale), each mission's briefing, and the named cast (Katana, Raymond,
Ellen, Crichton, …) all resolve. API: get / objectives / lose_conditions
/ hints / character_name. 3 tests.
Examples: campaign / dossier print the readable campaign + cast.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Decode Project Sylpheed's IDXD data model into plain, cloneable structs
(from GP_MAIN_GAME_E.pak; the D/F/I/J/S paks are localized dups):
- Weapon (121), CraftUnit (89, with the AI flight model in .fields),
Vessel (23, structural component counts), PlayerConfig (24) — the
full combat balance.
- Character (68 — faction + portrait set), Stage (29 missions:
location, phases, and the per-stage resource tables it wires up).
- Generic Record / load_records(schema) reads any of the 105 IDXD
schemas without a bespoke struct.
Each blob = one entity; token[0] names the table, fields are
value-before-key. Named Option<> fields for the common stats + a full
`fields` map; defaulted fields stay None (they're code-resident, not on
disc — honest blanks, never guessed). 8 tests against the real disc.
Examples: iso_map / deep_map census the ISO's formats and IDXD schemas;
dm_extract / dm_rows / dm_roster / mission_map dump the decoded data.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The 13 manifest-unbound hokyu (resupply) cutscenes reuse 5 recordings
(VOICE_D_450..454). The category guess (ship LS/DS × source carrier/
tanker) was wrong for some. The real selector is the cutscene's subtitle
demo-id: 600→450, 601→451, 602→452, 603→453, 604→454 — derived from the
5 BOUND hokyu (each carries both a demo-id and a VOICETRACK), so it
self-validates. Fixes hokyu_LS_s11A/s15A (→451, were wrongly 450) and
hokyu_LS_s24A/s27A (→silent, no voice cue). User-confirmed all correct.
hokyu_voice_token() builds the demo→token map from the bound hokyu and
looks up the target movie's demo-id; replaces the category fallback.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Cracked how the game maps a movie to its voice track and reimplemented it,
fixing wrong/short voices for RT and hokyu cutscenes.
## Mechanism (RE'd from a Canary file-I/O trace, user-confirmed by ear)
The movie voices are ONE continuous XMA stream, physically chunked into
`<lang>\Movie\VOICE_*.slb` (and `\etc\VOICE_D_*.slb`) sound.pak TOC entries
whose boundaries do NOT align with the cutscene cues. A single cue routinely
spans two `.slb` chunks, so a `.slb` does not necessarily hold the track its
name claims (they are off-by-one vs the cues). Each cue ends at an inline
trailer descriptor `(sound_id:u32be, 0x11, …)` whose id repeats at +0x800.
Resolution chain (all derivable on-disc, no guest-code RE):
1. movie -> cue token (ADVERTISE_MOVIE manifest VOICETRACK)
2. cue token -> sound-id (master sound registry, tables.pak
a2c8c185=eng / b04238e0=jpn, schema 0x13cb84ba)
3. sound-id -> [start,end) scan the stream for trailer(id) and its
predecessor; cue audio = the bytes between,
read continuously across chunk boundaries.
Validated: decoded voice length matches each movie within ~0.4s, including
cross-boundary cues (ADV/RT01A/RT01B/RT01C/S00A/S01A + the 5 bound hokyu).
## Changes
- sylpheed-formats/src/movie_voice.rs (new): registry_voice_ids(),
find_descriptor(), find_descriptor_before() (gap-tolerant predecessor).
Unit-tested.
- viewer iso_loader.rs: resolve_movie_voice_region() + decode_voice_region()
(continuous read via existing read_segment_range + to_xma_riffs). Voice/
audio requests now region-first; a `\Movie\` token that fails region stays
SILENT (never plays the wrong off-by-one chunk). Removed the old
movie_is_demo_based suppress hack.
- Anchor tries subdirs Movie/etc/Voice so hokyu `\etc\VOICE_D_*` resolve too.
- Examples resolve_all/validate_cues/hokyu_final document + validate the pipeline.
## Status
- RT / S / ADV cutscene voices: CORRECT (user-confirmed).
- 5 manifest-bound hokyu (VOICE_D_450-454): CORRECT (user-confirmed).
## OPEN (handoff)
13 of 18 hokyu movies have NO manifest VOICETRACK; the game reuses the 5
recordings across stages via a code rule. `hokyu_fallback_token()` currently
guesses by category (ship LS/DS x source carrier-A/tanker-H: LS/A->450,
LS/H->453, DS/A->452, DS/H->454). USER REPORTS THIS IS SOMETIMES WRONG.
- LS/carrier has two takes (450 from s02A, 451 from s09A); the early-vs-late
split is unknown — unbound LS/A currently all default to 450.
- Definitive fix = Canary `--phase_a_fileio_only` file.read trace of an unbound
hokyu (e.g. hokyu_LS_s03A) to see which VOICE_D the game actually streams,
then encode the real rule. Same method that cracked the RT mapping.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The movie manifest (tables.pak, schema 0x067025b9) is the game's authoritative mission -> phase -> cutscene table. Previously we only scraped VOICE_/SUBTITLE_/.wmv strings by prefix; now we decode the real two-array (slot-keys, then value-records) structure.
MovieEntry gains slot, kind (System/Intro/Phase/PhaseEnd/Supply), mission, phase, subtitle, and telop (the previously-ignored .prt on-screen text overlay). Valueless slots (stages with no resupply video) are recovered without decoding the binary node region, via the fully-derivable MS<NN><X> -> S<NN><X> anchors.
Backward compatible: movie/voice_token and resolve_voice_entry/voice_token/is_manifest are unchanged. Validated end-to-end on the real disc: 101 entries (104 slots - 3 gaps), typed System=6/Intro=27/Phase=32/PhaseEnd=18/Supply=18. examples/manifest_map.rs dumps the full map.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
list_voice_clips now enumerates every spoken-line category so the standalone audio player covers them all — bound movie voices (\Movie\), in-mission radio (\Voice\, \etc\), and mission briefings (\Briefing\, whose BR<NN>_<MM> names lack "VOICE"); music (BGM_*) stays excluded.
Viewer voice-library fixes: invalidate the library when a new game source loads, and don't latch an empty result as "loaded" (sounds.tbl always has thousands of clips, so empty = a failed read) so re-opening the menu retries.
Voice decode reverted to the first sub-wave (base behaviour): a naive multi-sub-wave concat produced the wrong track for RT movies. The per-sub-wave splitter (to_xma_riffs) is kept + documented for the eventual real fix, which needs ground-truth playback instrumentation to resolve segments-vs-takes-vs-timecode placement.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The movie cutscene subtitle + voice pipeline, driven by the ADVERTISE_MOVIE
manifest (the authoritative movie -> subtitle -> voice index). Also flushes
several sessions of local WIP (async viewer loading, grouped-pool XBG7/hero-ship
decode, drawlog tooling). See docs/HANDOFF-movie-voice-subtitles-2026-07-19.md.
Subtitles (movie_subtitle.rs):
- Full movie->track->text chain; join multi-line captions sharing one timing
(fixes S13A dropped "Look at it father" line); overlap-safe active_cues();
Latin-1 accents preserved.
Voice (slb.rs): XACT .slb -> XMA1 RIFF; take the FIRST sub-wave bounded by its
declared data size (fixes S10-S16 alternate-take garble); list_voice_clips.
Manifest (movie_manifest.rs): parse ADVERTISE_MOVIE (0x5B983A08) for the real
movie->voice binding (not always VOICE_<movie>; e.g. hokyu -> VOICE_D_* in etc\).
Resolve the token's sound.pak path via sounds.tbl. DIRECT bindings only — the
demo-id shared-clip fallback for unbound hokyu movies was verified WRONG in-game
and reverted (unbound hokyu stay unvoiced; correct join key is an OPEN problem).
Viewer: manifest-driven voice (movie player toggle + solo button), standalone
"Voice Lines" browser, stacked caption overlay.
Tests: 46 formats-lib + 11 viewer-lib + movie_manifest/movie_subtitle/slb disc
tests; full workspace green.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Revert the mis-guided "triangle STRIP" reading (a937779): XBG7 index
buffers are triangle LISTS (prim=4 in the GPU capture; stored-normal
agreement 1.000 as a list vs ~0.49 as a strip). Reinstate the
winding-consistency gate.
Crack the grouped-pool layout used by the hero ship and ~150 detailed
models. A resource's sub-meshes share one index pool (buffers 4-byte
aligned, in descriptor-marker order) followed by one vertex pool (each
vtx_count*stride, same order); the vertex pool is 4-byte aligned after
the index pool. The whole resource is derived from one anchored pivot:
ib0 = vb0 - span - pad (pad in 0..=3, alignment)
ib[i] = align4(ib[i-1] + idx_count[i-1]*2)
vb[i] = vb[i-1] + vtx_count[i-1]*stride
vb0 is found via the unit-normal vertex-run scan; the alignment is
confirmed by validating the LARGEST sub-mesh (most reliable), after
which the rest are read/validated. A single marker reduces this to the
existing adjacency anchor, so grouped generalises it.
Results (cross-checked against a Canary GPU draw-log capture of
DeltaSaber_T.xpr):
- DeltaSaber_T f001 = body + 7 detail parts = 8650 tris, every sub-mesh
0-degenerate / full-coverage / winding-agreement 1.000.
- All 19 previously-declined weapon models now decode (they hit pad 2
and/or lead with a tiny bracket that broke a markers[0] pivot). Corpus
audit: 0/146 geometry files fail (was 19 -> flat-texture in the viewer).
- Stages unchanged (single-marker path is byte-identical; grouped falls
back to the old anchor on failure). 7/7 disc tests green incl. the
strict stage quality audit; new hero_ship_grouped_pool_decodes test.
Viewer: route by count_xbg7; --only matches an exact model name (so the
neutral pose renders without the mnv*/turn180 animation poses). Fix the
albedo matcher: match a sub-model to its _col map by entity stem
(e007_bdy_01 -> e007_col) instead of a full-name prefix, lifting stage
sub-model texturing from ~25% to ~95% (the rest were flat grey). Colour
correctness (channel order/sRGB) remains a separate dynamic-RE item.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The weapon/prop models (rou_fxxx_wep_nn.xpr) rendered with triangular holes in
the hull and misplaced/extra spikes. Root cause: XBG7 sub-mesh index buffers are
triangle STRIPS, but the decoder read them as triangle LISTS — a strip of N
indices is N-2 triangles, a list is only N/3, so ~2/3 of every hull was missing
(the holes) and each list-triple of strip data spanned unrelated vertices (the
spikes). The tell: triangles-per-vertex was 0.5-1.0 with 0 unreferenced vertices
(a closed surface needs ~2.0).
- mesh.rs: expand_triangle_strip() converts strip -> list with alternating
winding, skipping degenerate triangles (repeated index = strip restart).
Applied in both from_xpr2 (weapons) and read_pool_mesh (stage sub-models).
All 71 weapon submeshes now have healthy ratios; hulls fill in (wep_03 cannon,
wep_04 pod, wep_11, wep_37 verified coherent).
- Module doc updated (strip, not list).
- sylpheed-cli: `mesh info` reports per-submesh degenerate/unref/spanning-triangle
counts; `mesh render` gains --dist (camera zoom). XMESHDBG env dumps the
descriptor index markers.
Known residual: an index buffer may concatenate several strips with no degenerate
bridge, leaving ~2 spanning "spike" triangles at each restart (index jump to a new
vertex region) — <1% of tris on most models. Decoding the restart mechanism is a
follow-up (a blanket spanning-filter is unsafe: clean models have legit elongated
tip triangles).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Follow-up to the 256×256-tiling reversal — the residual boundary seams on
≥2×2-tile textures are gone. Decoding the file header revealed the exact
layout (no oracle capture needed):
0x00 44 base header
0x1c 4 tile count = ceil(w/256) * ceil(h/256)
0x2c tiles*4 BE-u32 absolute offset of each row-major 256×256 tile
<off> 16 per-tile header, then tile_w*tile_h*4 A8R8G8B8 pixels
The old seams came from ignoring the offset table and the 16-byte per-tile
header (contiguous-packing drifted 16 bytes per tile). Small textures decoded
before only by luck: one tile puts pixels at 44+4+16 = 64, the old type-1
"header size". Now the 8AX title background, the prselect_win1 window frame,
and preff04 all decode pixel-perfect (verified against the title screen).
- t8ad.rs: parse() walks the offset table; dropped detile_256 + the
header-size-by-type table. Non-tilecount entries (field != ceil*ceil) return
None (likely DXT/other, deferred). New multi-tile round-trip test.
- sylpheed-cli: pak textures decodes via parse(); XDUMPHDR=1 dumps the base
header + offset table for RE. Removed the now-obsolete XTILE/XSCORE/XDESTRIP
experiment knobs and the reconstruct_tiles/TV-sweep helpers.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Verified against the running game (freeze-fixed Canary title screen) that
T8aD colours are correct (no R↔B swap) and that wide textures were garbled
by an unreversed tile layout, not a colour bug.
Reversed the layout: large T8aD are stored as 256×256 raster tiles in
row-major order, each tile raster internally, edge tiles clipped to the
image (payload is exactly w*h*4, no padding). Surfaces ≤256px wide are a
single tile column, identical to plain linear — which is why small UI
textures always decoded correctly.
- t8ad.rs: add detile_256() + apply in parse(). Single tile-row / single
tile-column textures now decode exactly (ptcopyright, ptbtn, ptlogo1 =
clean "PROJECT" logo, previously pure noise). Known residual: ≥2×2-tile
textures (>256 in both dims, e.g. the 8AX background) come out coherent
but with boundary seams — the multi-tile order is a subtle swizzle, TBD.
- sylpheed-cli: new `pak textures <pak> <out>` command — decodes every
T8aD (direct, RATC-nested, LSTA frames) to PNG for A/B against the game.
Env debug knobs for layout RE: XTILE/XDESTRIP/XDETILE_W/XREINTERPRET_PITCH
/XSCORE (TV-ranked tile sweep), plus --verbose size classification.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Route stage containers to stage_models (decode both single + stage paths, keep
whichever yields more geometry) — fixes stages showing the dummy-root "black
cube". Present a stage's sub-models as a thumbnail grid: each recentred and
uniformly scaled to a fixed cell so a 1-unit prop and a 3000-unit structure are
equally visible; skybox-plane / stray-anchor models (>20000u) are culled. Each
sub-model is textured by matching its name to the container's `_col` albedo.
Fix the orbit camera: zoom radius was hard-capped at 50u with fixed clip planes,
trapping the camera inside multi-thousand-unit stages. Zoom limits and near/far
planes now scale to the framed model.
Adds docs/HANDOFF-stage-mesh-2026-07-12.md.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Stage containers (hidden/resource3d/Stage_S*.xpr) are collections of up to
~450 enemy/prop sub-models, not single meshes. Xbg7Model::stage_models decodes
them: each resource is a [12-byte header][index buffer][vertex buffer] block
(index count = descriptor marker, vertex count = u32 32 bytes before it) whose
on-disc offset is NOT stored, so it is located by content — one O(file) pass per
stride finds vertex-buffer starts (unit NORMAL at +12 whose previous slot isn't)
and each resource is pinned to the candidate whose indices validate and produce
non-degenerate, well-connected triangles. A connectivity gate (mean triangle
edge <= 0.28x the bbox diagonal) rejects spiky mis-anchors. ~4993 sub-models
decode across the 22 stages.
The same insight fixes the weapon single-model layout: it is [12-byte header]
[index][vertex] too, not [index][12-byte gap][vertex]. Reading indices from the
block start turned the 12 header bytes into 6 junk indices (2 leading degenerate
triangles — the recurring stray-triangle artifact) and dropped the last 6 real
indices. Skipping the header leaves vertex offsets identical (coverage unchanged
at 36/166) and corrects the triangle list. Verified on wep_00/03/04.
Adds `sylpheed-cli mesh {info,render}` — a headless software rasterizer that
writes a shaded PNG (orthographic, z-buffered, two-sided), so recovered geometry
can be verified without the GUI. Stages render as a normalised thumbnail grid;
--only filters sub-models.
Tests: stage_models_{decode,sweep,quality_audit}; docs/re updated (xbg7-mesh.md
evidence log + INDEX.md).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Dynamic-RE follow-up: capture Canary's GPU vertex-fetch + draw calls and
feed the ground truth back into the static decoder.
The GPU capture confirmed the reverse-engineered layout exactly — meshes
draw as triangle LISTs (prim=4) with pos f32x3 @0, normal f16x4 @0x0C,
uv f16x2 @0x14 — and revealed the XBG7 vertex format is NOT fixed-stride:
models omit elements (stride 20 = pos+normal, no UV; 24 = pos+normal+uv).
- mesh.rs: parse the descriptor's vertex declaration ({offset, format-code,
usage} triples; 0x2A23B9=pos f32x3, 0x1A2360=normal f16x4, 0x2C235F=uv
f16x2) to drive per-model stride + element offsets, instead of assuming
stride 24. Coverage 25 -> 36 fully-validated models (e.g. the Stage_S*
props, which are pos+normal only). Same index-range + unit-normal safety
gates; complex/mismatched layouts still declined.
- Endianness note (documented): the capture's fetch endian=k8in32 describes
the GPU's guest-memory copy, NOT the .xpr file bytes — reading the file
with k8in32 breaks the normals (|n|->1.33); naive big-endian per element
is correct (the game rearranges vertex data on load).
- tests: a coverage-regression test (>=35 models) + the existing weapon /
body-declined disc tests still pass.
Confirmed against a Canary draw-log capture; see docs/re/structures/
xbg7-mesh.md (evidence log + declaration table).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Reverse-engineer the single-stream XBG7 geometry layout (clean-room: hex
inspection + geometric validation of the retail disc's
hidden/resource3d/*.xpr, no game code copied) and present models as
textured 3D meshes in the explorer.
Format (docs/re/structures/xbg7-mesh.md): XBG7 geometry resources sit
inside XPR2 containers alongside TX2D textures. For ~25 single-stream
models (weapons, simple props) the data section is a sequence of
sub-meshes, each an u16-BE triangle-list index buffer followed (after a
fixed 12-byte header) by a stride-24 vertex buffer whose declaration is
in the descriptor: POSITION f32x3 @0x00, NORMAL f16x4 @0x0C, TEXCOORD
f16x2 @0x14. Sub-mesh (vtx,idx) counts come from descriptor tuples.
The +12 vertex offset is pinned by the recovered normals being exactly
unit-length (align16 lands 4 bytes early and silently corrupts every
field). A safety gate rejects any model whose indices are out of range
or whose mean |normal| is not ~1, declining garbage (Stage_S*
placeholders, the complex multi-stream hero-ship body) rather than
mis-decoding it.
- mesh.rs: Xbg7Model::from_xpr2 -> GameMesh { positions, normals, uvs,
indices }; standalone f16->f32; unit + real-disc tests (weapon decodes
to 215v/364t with unit normals + in-range UVs; DeltaSaber body
declined).
- texture.rs: from_xpr2_index / texture_names so the viewer can pick a
model's _col albedo map.
- viewer: loose .xpr with decodable XBG7 spawns Bevy meshes (real normals,
double-sided) textured with the albedo, framed by the orbit camera; the
central egui panel goes transparent so the 3D scene shows through.
Complex multi-stream body meshes (DeltaSaber f004, other vertex layouts)
remain undecoded and are cleanly declined — next target is dynamic RE.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Resolved the "colours look odd" channel-order/sRGB question for k_8_8_8_8
(T8aD 2D UI textures) with no emulator run:
- sRGB: Canary's Vulkan host-format table maps plain k_8_8_8_8 to
R8G8B8A8_UNORM and contains no R8G8B8A8_SRGB anywhere — gamma is a
separate explicit EDRAM path. So these are raw linear bytes; apply no
sRGB/gamma decode.
- Channel order: measured 789 real disc textures — byte0 is the opaque
alpha (==0xFF-dominant) in 97% — so on-disk is ARGB. Cross-checked
against xenia-rs decode_k8888_tiled, the Canary-validated M1/M2 path,
which nets the same [A,R,G,B]->[R,G,B,A]. sylpheed-formats is correct.
Promotes the k8888 entry HYPOTHESIS -> CONFIRMED; INDEX updated. XPR2
skybox tiling + viewer display-gamma remain separate open items.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Establish docs/re/ as the spec-side of the clean-room:
- README: confidence tiers (HYPOTHESIS/PROBABLE/CONFIRMED), promotion
requires NEW independent evidence, append-only evidence logs,
demote-on-contradiction, and a clean-room firewall (describe behaviour +
cite addresses; never paste decompiled code). Documents the toolchain
(sylpheed.db + zq.py, xenia-rs probes, Wine-Canary oracle) and the
join-by-guest-PC method with the VA-equality caveat.
- Function/structure templates + a seeded INDEX (9 already-reversed formats).
- First entry: texture-color-k8888 — CONFIRMED plain k_8_8_8_8 is linear
UNORM (no sRGB), channel order still to be measured.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Add three static PAK-format decoders in the Bevy-free formats crate and
present them in the explorer:
- t8ad.rs: linear 32bpp A8R8G8B8 2D texture (UI/HUD art). Dims at
0x14/0x18, header size keyed by the type field @0x1c (container-safe).
Decodes the ~85% RGBA variants; defers the rest (likely DXT) rather
than misdecoding.
- ratc.rs: nested resource bundle — lists named children by magic scan.
- lsta.rs: sprite list — walks the inline T8aD frames.
Viewer: PakContent gains T8ad/Lsta/Ratc, decoded off-thread and bounded
by an 8M-texel per-entry cap; detail views show the texture, a sprite
grid, and a child list with thumbnails. Decoded images carry a
"colours unverified" note — channel-order/sRGB stays on the dynamic-RE
backlog.
Tests: 12 new unit + 3 real-disc (T8aD >=70% decode over the hangar
pack, LSTA frames, RATC named children incl. a decodable T8aD).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
inner_format_label mapped only IDXD/xml/printable-tag magics; fonts and
images fell through to a bare hex label (00010000, 89504E47, …). Recognize
the known binary signatures and return friendly short tags so the pak
browser's format column reads them: sfnt/true/typ1 → "ttf", OTTO → "otf",
ttcf → "ttc", PNG → "png", plus RIFF/DDS. Still-unidentified magics keep the
hex fallback. Shared by the CLI `pak list` and the GUI browser.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Decode and present four more PAK item types in the pack browser's detail
pane. All content is decoded off-thread in build_pak_rows and attached to
each PakRow, then rendered with egui's own texture facilities — the Bevy
texture pipeline and egui's global font system are untouched.
formats crate (Bevy-free, reusable by CLI):
- ixud: parse IXUD localized-string tables as subtitle cue lists (UTF-16BE
pool, SUBTITLE header + (text, timecode) pairs -> Vec<Cue{start,end,text}>).
- font: OTF/TTF/ttcf metadata (family / faces / glyphs) via ttf-parser.
viewer:
- PakRow gains `content: PakContent` (Subtitle | Font | Png | Text | None);
classify_content fills it for IXUD / fonts / PNG / xml+text within the
existing decode budget. Font samples are pre-rasterized off-thread with
ab_glyph into an image (ImageRgba) — ab_glyph returns Option/Result at every
step, so a bad font yields no sample instead of panicking (the earlier
egui set_fonts approach crashed the app on atlas rebuild).
- draw_pak_browser dispatches on content: subtitle cue table, font metadata +
sample image, PNG image, scrollable text; else the existing IDXD detail.
Borrow-split PakView instead of cloning the (now heavy) rows each frame;
one hash-keyed egui texture cache serves both PNG and font-sample images.
Subtitle<->movie auto-matching is deferred: movie filenames don't hash to the
IXUD keys and no cross-reference table was found (the link is an internal
MSG_DEMO id), so the movie player gets no subtitle track yet.
Tests: ixud unit tests; disc tests for the real English subtitle track
(cues + timecodes), eng/deu localization, font metadata, and off-thread
rasterization of the real font.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Add an in-explorer video player for the dat/movie/*.wmv cutscenes.
Decode via the ffmpeg/ffprobe CLI (no libav linking): video streams from an
`ffmpeg -f rawvideo -pix_fmt rgba` pipe read into fixed w*h*4 frame chunks over
a bounded channel (paused/behind => ffmpeg back-pressures on its pipe); one
reused Image is overwritten in place each tick. Audio is best-effort: the track
is pre-decoded to a temp stereo WAV and played through a rodio Sink (volume /
play / pause / seek-via-skip_duration for free). Native-only under
cfg(not(wasm32)); VideoPreview registers unconditionally so the UI compiles for
wasm. Mirrors the .pak load pipeline (FileSelected -> bg thread ->
IsoLoaderMsg::VideoLoaded -> apply_loaded_video -> advance_video_playback), with
a single free_video teardown wired into every other viewer's reset.
Controls:
- play/pause button, click-on-frame toggle, Space / arrow (+-10s) shortcuts
- seekable timeline with mm:ss labels; volume slider (greyed when no audio)
- live scrubbing: a coalescing one-shot `ffmpeg -ss -frames:v 1` grabber always
jumps to the knob's latest position, so dragging shows the frame under the
knob in real time; that grabbed frame also bridges the gap after a commit-seek
so there's no black flash while the streaming decoder catches up.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
TXCM XPR2 resources are the game's world skyboxes (BG_Acheron, BG_Hargenteen,
…). The viewer showed only face 0 as a flat 2D image; now it decodes all 6 faces
and shows a labelled grid.
Formats (Bevy-free): X360Texture::cube_faces_from_xpr2() returns a Cubemap with 6
faces in D3D9 order (+X −X +Y −Y +Z −Z), or None for ordinary 2D textures. Face
layout derived from xenia's GetGuestTextureLayout — 6 back-to-back independently-
tiled surfaces, per-face stride = tiled-surface-size aligned to the 4 KiB
subresource boundary (kTextureSubresourceAlignmentBytes). Verified against real
BG_Acheron: data_size == 6 × 0x400000, and all 6 faces decode cleanly (own
Python decode + a disc test asserting 6×4 MiB faces and face 0 == the validated
from_xpr2 green-planet decode). Extracted a shared decode_surface() helper so the
2D and cube paths are byte-identical; from_xpr2 output unchanged (re-verified).
Viewer: new SkyboxPreview resource (6 egui face textures, reusing the existing
per-format x360_texture_to_bevy_image); populated in apply_loaded_texture's TXCM
branch; freed/reset alongside the other previews (factored free_texture/
free_skybox helpers). Central panel gains a skybox branch rendering a 3-column
labelled face grid.
DEFERRED (per "do not guess, else defer"): the interactive 3D skybox. Face data +
D3D9 order are validated, but wgpu cube-sampling handedness can't be confirmed
without eyeballing the GUI — a wrong-oriented skybox is worse than the correct
labelled grid. The grid is the reliable deliverable; the 3D look-around is a
follow-up once orientation is visually confirmed.
(Background agent did the investigation/validation but was blocked from writing
files; implemented here in the main tree from its findings, independently
re-verified.)
23 formats tests + disc cubemap test pass; viewer/CLI build; face-0 export
re-verified as the green planet.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Four small UX fixes to the asset explorer:
1. Remove the no-op "View" menu (Textures/Meshes/Audio toggles + Wireframe
checkbox) — none were wired to anything. Dropped ViewMode + the current_mode/
wireframe fields from ViewerState (nothing read them); the central panel
already dispatches on which preview resource is populated.
2. Loading indicator — clicking a drawer item now flips FileBrowserState.loading
and the central panel shows a centered spinner + "Loading <name>…" until the
background read/decode applies, instead of leaving the previous item on screen
with no feedback. Cleared in poll_loader_channel on FileLoaded/PakLoaded/
Error/Cancelled.
3. Drawer shows only the .pak index, not its .pNN data segments — the segments
are the pack's body (loaded when the .pak is opened), so listing them (with no
preview) was noise. Dropped the virtual "<stem>.pak" folder too; the .pak now
sits as a normal leaf in its real directory.
4. Bottom status bar no longer overflows — horizontal_wrapped, only the source's
final path component (full path on hover), file count, and a right-aligned,
shortened controls hint. Removed the mode label.
Viewer + formats build; all tests pass.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Roadmap #3. The explorer can now open IPFB data packs — the game's ship/weapon/
mission definition tables. Selecting a `.pak` shows a master-detail browser:
entry list (hash · inner-format · identity) on the left, the selected IDXD
object's schema + explicit-field property table on the right.
Load path: a `.pak` selection reads the index plus its sibling `.pNN` segments
(ISO reader or extracted dir, probing p00.. until the first gap), assembles via
PakArchive::from_parts, and builds owned PakRow/PakDetail entirely off-thread —
so the UI holds only plain data (no borrow of a PakArchive, WASM-safe). Two
decode caps (64 MiB cumulative, 16 MiB/entry) keep a huge sound.pak from hanging;
over-budget entries show as "(not decoded)".
Wiring mirrors the texture path: new IsoLoaderMsg::PakLoaded → PendingPak staging
→ apply_pak. A shared reset (free GPU handle + clear texture/text/pak previews)
runs in both apply systems, so exactly one viewer is active per selection and the
prior GPU texture is always freed when switching modes.
Reuse over duplication: the CLI's inner_label / idxd_identity move into the
formats crate as pak::inner_format_label and IdxdObject::identity (bodies
verbatim → CLI output unchanged), now shared by CLI and GUI.
PakView registered unconditionally (wasm-safe; population native-only). ViewMode
unchanged — the central panel dispatches on the populated resource. Workspace
builds; 22 formats tests + all crate tests pass.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Explorer drawer was a flat list of all 353 disc files and only textures had a
preview. Two additions:
1. Directory tree — the left drawer is now a collapsible `📁` tree, rebuilt each
frame from the path list (ui.rs: build_tree / split_for_tree / render_dir).
Filtering narrows leaves and auto-expands matches; `.p00…p04` data segments
nest under a virtual `<stem>.pak` node. Selection still keys off the original
file index, so the loader pipeline is untouched.
2. Plain-text viewer — config.ini and any file that sniffs as text now show
read-only, selectable, monospace content with a Wrap toggle and an encoding
label. Detection/decoding live in the Bevy-free formats crate:
vfs::is_probably_text + vfs::decode_text (BOM-aware UTF-8/UTF-16LE/BE, BOM-less
UTF-16LE heuristic, NUL-reject + 95%-printable fallback) — pure std, WASM-safe,
unit-tested (6 new tests), and reused by the CLI sniffer (new cyan `txt`).
New TextPreview resource (registered unconditionally so it exists on wasm);
populated in apply_loaded_texture with a 2 MiB char-boundary-safe cap. Also fixes
a latent bug: switching from a texture to a non-texture left stale preview state —
both texture and text state now reset on every selection.
ViewerState gains text_wrap. Formats tests: 22 pass; workspace compiles.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The dword-swap that fixes DXT1 is a property of the BC1 COLOUR block, not of
BCn in general. RE on a DXT5A (BC4) mask showed the alpha block is byte-indexed
and wants the endian swap ALONE — dword-swapping it makes it worse. The blanket
swap from the previous commit was therefore breaking the (common) DXT5A/DXN
alpha & normal masks.
Now targeted by format:
- DXT1 : swap dwords of each 8-byte colour block (verified).
- DXT2_3 / DXT4_5 : swap only the colour half (bytes 8..16) of each 16-byte
block; alpha half endian-only. TENTATIVE — these formats
are near-absent in the game assets, so unvalidated against
a clear image.
- DXT5A / DXN : no dword swap (endian only).
DXT1 export re-verified clean (weapon skins); 16 formats tests pass.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
DXT1 (108/137 textures in Base.xpr — the bulk of picture assets) decoded to
noise. Root cause found by RE: Xbox 360 BCn blocks store the two 32-bit words
of each 64-bit sub-block in the opposite order to the PC/DDS layout — colour
endpoints live in the HIGH dword, indices in the low one. The endian field
(k8in16) only fixes byte order within the 16-bit words; it does not reorder the
dwords, so without this every DXT texture transposed endpoints/indices → noise.
Isolation that led here:
- de-tile proven correct for bpb=8 (coherent per-block signature map; the
linear read is scrambled) — same faithful Xenos Tiled2D as the verified
bpb=4 ARGB path (green Acheron backdrop).
- inspecting a smooth region, coherent colour endpoints appeared only in
bytes[4..8], with the high-entropy indices in bytes[0..4].
Fix: swap_bc_block_dwords() swaps the two dwords within each 64-bit unit after
the byte-level endian swap, for every BCn format. Verified in the real Rust CLI:
weapon skins (rou_f001_wep_*) now decode to clean, recognisable images.
Viewer: DXT1 is fixed transparently (from_xpr2 feeds tex.data straight to the
GPU as Bc1). Also corrected the uncompressed path — post-swap k_8_8_8_8 is
[A,R,G,B]; reorder to [R,G,B,A] and upload as Rgba8UnormSrgb (was Bgra8, wrong).
Knob: XPR_NO_BC_DWORD_SWAP disables the swap for A/B validation.
KNOWN REMAINING: 16-byte blocks (BC2/DXT3, BC3/DXT5) and BC4/BC5 (DXT5A/DXN)
still need their alpha+colour half layout worked out — they decode to noise for
now. DXT1 + uncompressed + cubemaps are correct.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Reworks the XPR2 texture path after RE against the retail disc (viewer
previews were scrambled/failed).
- de-tile: replace the naive Morton-over-32×32 approximation with the
faithful Xenos Tiled2D bank/pipe/macro-tile address formula (ported
from xenia texture_address.h). Verified correct: the Acheron backdrop
decodes to a sharp planet with its spiral storm.
- endian: undo the X360 word byte-swap per the fetch-constant endianness
field (k8in16/k8in32/k16in32) — without it BCn/ARGB data is noise.
- cubemaps: parse TXCM resources (skybox/backdrops), decoding face 0,
instead of erroring "No TX2D found".
- A8R8G8B8: correct channel order after the k8in32 swap ([A,R,G,B]→RGBA)
— the Acheron backdrop is now correctly green, not red.
- XPR files are texture PACKS; add XPR_RES_INDEX to select a resource.
- CLI `texture export` now writes real PNGs (texpresso BCn decode +
image), replacing the stub. Adds texpresso + image deps.
- tests/texture_disc.rs: integration test running the pipeline over real
disc .xpr files (28/28 parse). RE debug knobs: XPR_NO_DETILE /
XPR_NO_ENDIAN / XPR_FORCE_ENDIAN.
KNOWN ISSUE: mipmapped DXT1 textures still decode to noise — mip 0 is
not at base_address in the multi-resource packs (localized to a mip
storage-offset quirk; uncompressed + de-tile + endian are all verified).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Add hash::recover_toc_name + TOC_NAME_SCHEMES (confirmed path schemes:
unit\<ID>.tbl, weapon\<ID>.tbl, message\<ID>.tbl, effect\<ID>.tbl,
<name>.tbl) that reproduce an entry's original backslash path from its
internal identity string via the recovered name-hash.
`pak list` now extracts identifier candidates from each IDXD entry
(ID/Name/Model + pool tokens) and prints the resolved path when a scheme
matches — e.g. unit\UN_f001_TCAF_DeltaSaber_T.tbl,
weapon\Weapon_…_Missile.tbl, message\CharacterCARL.tbl — plus a
name-resolved count. 308/1004 resolved on GP_MAIN_GAME_E; the remainder
use deeper cross-referenced paths (deferred).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The pak TOC key was previously an unknown hash (crc32/fnv/djb2/… ruled
out), forcing content-only lookup. Recovered it by static RE of the
retail title:
sub_824609C8 (pak lookup-by-name) dups the requested path, lowercases
it (sub_825F4F90), hashes with sub_82455C78, then binary-searches the
sorted TOC. sub_82455C78 is a per-byte Barrett-reduced polynomial hash
(modulus 0x00FFF9D7, reciprocal 0x80031493): the low 24 bits are the
modular hash, the top byte an 8-bit additive checksum of the bytes.
New `hash` module reproduces it exactly (faithful op sequence, no
textbook %). Verified against the real disc: name_hash("files.tbl") ==
0x83421153 and name_hash("eng\\weapon.tbl") == 0x900C8DCD, both present
in retail TOCs. Add PakArchive::find_by_name / read_by_name and a disc
integration test resolving eng\weapon.tbl by path (→ valid IDXD).
Note: retail paths use backslash separators (eng\weapon.tbl).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Add readers for Project Sylpheed's on-disc data format so the
reimplementation can load exact ship/weapon constants straight from
the game files.
- pak.rs: PakArchive — parse the IPFB `.pak` index + concatenated
`.pNN` segments, binary-search the TOC by name-hash, and transparently
inflate the per-entry "Z1" (zlib) container. Adds flate2.
- idxd.rs: IdxdObject — parse the IDXD reflective object serialization.
The string pool stores properties value-before-key with defaulted
fields omitted; typed getters (get_f32/get_i64/get_str/get_bool) read
explicit values reliably, get_raw exposes identifier fields, and
resolved_fields() enumerates every explicit (key,value). Defaulted
fields correctly return None rather than a neighbouring key.
- sylpheed-cli: `pak list` (inventory entries + identity) and
`pak dump <hash>` (full stat sheet for one object).
Verified against the real disc (auto-skipped without it): DeltaSaber
craft (HP=1000, Acceleration=600, velocity curve 100/700/1200, Turn=100,
RadarRange=500000) and the DSaber missile (LoadingCount=144, Interval=3.00,
Mass=0.77). 10 unit + 3 integration tests pass.
Not yet decoded: defaulted fields (many ratios, the *Count family) whose
values come from schema defaults or the hash-keyed binary node region.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
